做数学就是参与发现与猜想、直觉与灵感的过程。
The line between good and evil is often blurred.
The Olympic Games are for the world and all nations must be admitted to them.
I'm not a hero, I'm a voice for the voiceless.
正义的概念不是法律概念,而是道德概念。
You are not defined by your past.